core_rpc_server: add a getblock RPC command, and fix print_block

src/daemon/rpc_command_executor.cpp

@@ -408,8 +408,8 @@ bool t_rpc_command_executor::print_height() {
 }
 
 bool t_rpc_command_executor::print_block_by_hash(crypto::hash block_hash) {
-  cryptonote::COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::request req;
+  cryptonote::COMMAND_RPC_GET_BLOCK::request req;
-  cryptonote::COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::response res;
+  cryptonote::COMMAND_RPC_GET_BLOCK::response res;
   epee::json_rpc::error error_resp;
 
   req.hash = epee::string_tools::pod_to_hex(block_hash);
@@ -418,14 +418,14 @@ bool t_rpc_command_executor::print_block_by_hash(crypto::hash block_hash) {
 
   if (m_is_rpc)
   {
-    if (!m_rpc_client->json_rpc_request(req, res, "getblockheaderbyhash", fail_message.c_str()))
+    if (!m_rpc_client->json_rpc_request(req, res, "getblock", fail_message.c_str()))
     {
       return true;
     }
   }
   else
   {
-    if (!m_rpc_server->on_get_block_header_by_hash(req, res, error_resp))
+    if (!m_rpc_server->on_get_block(req, res, error_resp))
     {
       tools::fail_msg_writer() << fail_message.c_str();
       return true;
@@ -433,13 +433,14 @@ bool t_rpc_command_executor::print_block_by_hash(crypto::hash block_hash) {
   }
 
   print_block_header(res.block_header);
+  tools::success_msg_writer() << res.json << ENDL;
 
   return true;
 }
 
 bool t_rpc_command_executor::print_block_by_height(uint64_t height) {
-  cryptonote::COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT::request req;
+  cryptonote::COMMAND_RPC_GET_BLOCK::request req;
-  cryptonote::COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT::response res;
+  cryptonote::COMMAND_RPC_GET_BLOCK::response res;
   epee::json_rpc::error error_resp;
 
   req.height = height;
@@ -448,14 +449,14 @@ bool t_rpc_command_executor::print_block_by_height(uint64_t height) {
 
   if (m_is_rpc)
   {
-    if (!m_rpc_client->json_rpc_request(req, res, "getblockheaderbyheight", fail_message.c_str()))
+    if (!m_rpc_client->json_rpc_request(req, res, "getblock", fail_message.c_str()))
     {
       return true;
     }
   }
   else
   {
-    if (!m_rpc_server->on_get_block_header_by_height(req, res, error_resp))
+    if (!m_rpc_server->on_get_block(req, res, error_resp))
     {
       tools::fail_msg_writer() << fail_message.c_str();
       return true;
@@ -463,6 +464,7 @@ bool t_rpc_command_executor::print_block_by_height(uint64_t height) {
   }
 
   print_block_header(res.block_header);
+  tools::success_msg_writer() << res.json << ENDL;
 
   return true;
 }

src/rpc/core_rpc_server.cpp

@@ -772,6 +772,66 @@ namespace cryptonote
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
+  bool core_rpc_server::on_get_block(const COMMAND_RPC_GET_BLOCK::request& req, COMMAND_RPC_GET_BLOCK::response& res, epee::json_rpc::error& error_resp){
+    if(!check_core_busy())
+    {
+      error_resp.code = CORE_RPC_ERROR_CODE_CORE_BUSY;
+      error_resp.message = "Core is busy.";
+      return false;
+    }
+    crypto::hash block_hash;
+    if (!req.hash.empty())
+    {
+      bool hash_parsed = parse_hash256(req.hash, block_hash);
+      if(!hash_parsed)
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_WRONG_PARAM;
+        error_resp.message = "Failed to parse hex representation of block hash. Hex = " + req.hash + '.';
+        return false;
+      }
+    }
+    else
+    {
+      if(m_core.get_current_blockchain_height() <= req.height)
+      {
+        error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
+        error_resp.message = std::string("To big height: ") + std::to_string(req.height) + ", current blockchain height = " +  std::to_string(m_core.get_current_blockchain_height());
+        return false;
+      }
+      block_hash = m_core.get_block_id_by_height(req.height);
+    }
+    block blk;
+    bool have_block = m_core.get_block_by_hash(block_hash, blk);
+    if (!have_block)
+    {
+      error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
+      error_resp.message = "Internal error: can't get block by hash. Hash = " + req.hash + '.';
+      return false;
+    }
+    if (blk.miner_tx.vin.front().type() != typeid(txin_gen))
+    {
+      error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
+      error_resp.message = "Internal error: coinbase transaction in the block has the wrong type";
+      return false;
+    }
+    uint64_t block_height = boost::get<txin_gen>(blk.miner_tx.vin.front()).height;
+    bool responce_filled = fill_block_header_responce(blk, false, block_height, block_hash, res.block_header);
+    if (!responce_filled)
+    {
+      error_resp.code = CORE_RPC_ERROR_CODE_INTERNAL_ERROR;
+      error_resp.message = "Internal error: can't produce valid response.";
+      return false;
+    }
+    for (size_t n = 0; n < blk.tx_hashes.size(); ++n)
+    {
+      res.tx_hashes.push_back(epee::string_tools::pod_to_hex(blk.tx_hashes[n]));
+    }
+    res.blob = t_serializable_object_to_blob(blk);
+    res.json = obj_to_json_str(blk);
+    res.status = CORE_RPC_STATUS_OK;
+    return true;
+  }
+  //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_connections(const COMMAND_RPC_GET_CONNECTIONS::request& req, COMMAND_RPC_GET_CONNECTIONS::response& res, epee::json_rpc::error& error_resp)
   {
     if(!check_core_busy())

src/rpc/core_rpc_server.h

@@ -101,6 +101,7 @@ namespace cryptonote
         MAP_JON_RPC_WE("getlastblockheader",     on_get_last_block_header,      COMMAND_RPC_GET_LAST_BLOCK_HEADER)
         MAP_JON_RPC_WE("getblockheaderbyhash",   on_get_block_header_by_hash,   COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH)
         MAP_JON_RPC_WE("getblockheaderbyheight", on_get_block_header_by_height, COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT)
+        MAP_JON_RPC_WE("getblock",                on_get_block,                 COMMAND_RPC_GET_BLOCK)
         MAP_JON_RPC_WE("get_connections",        on_get_connections,            COMMAND_RPC_GET_CONNECTIONS)
         MAP_JON_RPC_WE("get_info",               on_get_info_json,              COMMAND_RPC_GET_INFO)
       END_JSON_RPC_MAP()
@@ -136,6 +137,7 @@ namespace cryptonote
     bool on_get_last_block_header(const COMMAND_RPC_GET_LAST_BLOCK_HEADER::request& req, COMMAND_RPC_GET_LAST_BLOCK_HEADER::response& res, epee::json_rpc::error& error_resp);
     bool on_get_block_header_by_hash(const COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::request& req, COMMAND_RPC_GET_BLOCK_HEADER_BY_HASH::response& res, epee::json_rpc::error& error_resp);
     bool on_get_block_header_by_height(const COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT::request& req, COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT::response& res, epee::json_rpc::error& error_resp);
+    bool on_get_block(const COMMAND_RPC_GET_BLOCK::request& req, COMMAND_RPC_GET_BLOCK::response& res, epee::json_rpc::error& error_resp);
     bool on_get_connections(const COMMAND_RPC_GET_CONNECTIONS::request& req, COMMAND_RPC_GET_CONNECTIONS::response& res, epee::json_rpc::error& error_resp);
     bool on_get_info_json(const COMMAND_RPC_GET_INFO::request& req, COMMAND_RPC_GET_INFO::response& res, epee::json_rpc::error& error_resp);
     bool on_hard_fork_info(const COMMAND_RPC_HARD_FORK_INFO::request& req, COMMAND_RPC_HARD_FORK_INFO::response& res, epee::json_rpc::error& error_resp);

src/rpc/core_rpc_server_commands_defs.h

@@ -536,6 +536,38 @@ namespace cryptonote
 
   };
 
+  struct COMMAND_RPC_GET_BLOCK
+  {
+    struct request
+    {
+      std::string hash;
+      uint64_t height;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(hash)
+        KV_SERIALIZE(height)
+      END_KV_SERIALIZE_MAP()
+    };
+
+    struct response
+    {
+      std::string status;
+      block_header_responce block_header;
+      std::vector<std::string> tx_hashes;
+      std::string blob;
+      std::string json;
+      
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(block_header)
+        KV_SERIALIZE(tx_hashes)
+        KV_SERIALIZE(status)
+        KV_SERIALIZE(blob)
+        KV_SERIALIZE(json)
+      END_KV_SERIALIZE_MAP()
+    };
+
+  };
+
   struct peer {
     uint64_t id;
     uint32_t ip;